Bosch Greentherm T9800 SEO199 User Manual

6 720 817 281 (2018/12) US
Installation and Operating Instructions
FOR OUTDOOR INSTALLATIONS ONLY
Greentherm T9800 SEO160/199
WARNING!
Improper installation, adjustment, alteration, service or maintenance can cause
injury or property damage. Refer to this manual. For assistance or additional
information consult a qualified installer, service agency or the gas supplier.
NOTICE
Upon completion of the installation, these instructions should be handed to the
user of the appliance for future reference.
160 000/199 000 Btu- Natural Gas

Bosch Greentherm T9800 SEO199 Specifications

General

Type	Tankless
Fuel Type	Natural Gas or Propane
Maximum Flow Rate	11.2 GPM
Energy Factor	0.95
Dimensions	23.5 x 17.75 x 12.25 inches
Weight	65 pounds
Thermal Efficiency	96%
Water Connection	3/4" NPT
Gas Connection	3/4" NPT
Voltage	120V
Frequency	60 Hz
Max. Water Pressure	150 psi
Activation Flow Rate	0.5 GPM
Minimum Flow Rate	0.5 GPM
Ignition	Electronic
Venting	Direct Vent
Warranty	15-year limited on heat exchanger, 5-year limited on parts
Vent Connection	2" PVC, CPVC, or ABS
Flow Rate	11.2 GPM
Maximum Temperature Rise	77°F
Max. Input (BTU/hr)	199, 000 BTU/hr

Summary

Key to symbols and safety instructions

Key to symbols

Explains warning symbols and their meanings in the manual.

Safety instructions

Crucial safety warnings and precautions for installation and operation.

Appliance details

Features

Highlights key features and residential model characteristics.

Specifications (Technical data)

Provides detailed technical specifications for capacity, temperature, gas, water, and dimensions.

Unpacking the heater

Steps for unpacking the heater and checking box contents.

General rules for safe operation

Essential guidelines for safe installation and operation of the water heater.

Dimensions

Visual representation and measurements of the appliance's physical size.

Installation instructions

Introduction and Location Planning

Overview of installation process, safety, and planning the heater location.

Heater Location and Clearances

Guidelines for selecting heater location and minimum installation clearances.

Mounting Instructions

Procedures for mounting the heater, including considerations for vinyl siding.

Air Openings and Factory Settings

Details on air intake, factory gas settings, and modular home mounting.

Gas Piping and Connections

Instructions for connecting the gas supply, including safety and sizing.

Water Quality and Connections

Requirements for water quality, connecting water lines, and filter installation.

Condensate Drain and Water Filter

Connecting the condensate drain and installing the water filter.

Domestic hot water recirculation

Guidance for domestic hot water recirculation with an external pump.

Space heating applications

Information on using the heater for space heating and related precautions.

Measuring Gas Pressure

Procedures for measuring static and dynamic gas pressure for installation.

Electrical Connections

Electrical Power Supply

Safety and connection requirements for the electrical power supply.

Fuse Location in Control Unit

Steps to locate and check fuses within the control unit.

Operating Instructions

Safety Before Operation

Critical safety information to review before operating the water heater.

Powering On and HMI Access

Steps to turn on the appliance and access the human-machine interface.

Error Code Reset and Temperature Selection

Procedures for resetting errors and selecting the desired water temperature.

Default Temperature and Solar Mode

Programming default temperatures and understanding solar mode activation.

Information and Adjustments Menu

Navigating the menu to access information and make adjustments.

Operation Data and Failure History

Viewing operational data, cycle counts, and failure history.

Purge Function

How to use the purge function to clear the exhaust circuit.

Settings Menu

Accessing and configuring various settings like recirculation and startup delay.

Unit Settings and Region Selection

Configuring display units, selecting the region, and recirculation settings.

Temperature Limit and Appliance Type

Setting temperature limits and defining appliance type and bypass function.

Maintenance and Service

Water Actuator Calibration

Procedures for calibrating main and bypass water valves.

Gas Type Verification

Ensuring the correct gas type is selected for appliance performance.

Required Annual Maintenance

Checklist for essential annual inspection and cleaning tasks.

Seasonal Winterizing and Scale Management

Preparing the unit for seasonal shutdown and managing mineral scale build-up.

Troubleshooting

Introduction and Burner Ignition Issues

General troubleshooting approach and steps for burner ignition problems.

Temperature and Flow Issues

Diagnosing and resolving problems with water temperature and flow rate.

Noise, Error Codes, and Gas Pressure

Addressing operational noise, specific error codes, and manifold gas pressure.

Gas/Air Flow Adjustment

Procedures for adjusting gas and air flow for optimal combustion.

Manual Gas/Air Flow Adjustment

Detailed steps for manually adjusting gas and air flow parameters.

Factory Defaults and CO Emissions

Restoring factory settings and performing CO emissions checks.

Problem Solving and Error Codes

Error Code Diagnostics

Table detailing error codes, their descriptions, and solutions.

Electrical Diagram

Electrical Diagram

Schematic showing the electrical layout and component connections.

Sensor Resistance Charts

Sensor Resistance Charts

Graphs illustrating sensor resistance relative to temperature for diagnostics.

Software Menu Structure

Software Main Menu Structure

Diagram illustrating the navigation and hierarchy of the appliance's software menus.

Interior Components

Interior Components Diagram

Visual identification of major internal components with a numbered list.

Environmental Protection and Installer Checklist

Protecting the Environment

Guidance on recycling packing materials and conserving water resources.

Installer Checklist

A checklist for installers to complete and retain upon installation completion.